97 lines
2.6 KiB
Ruby
97 lines
2.6 KiB
Ruby
require 'ostruct'
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require 'formula'
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require 'vendor/multi_json'
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# Inherit from OpenStruct to gain a generic initialization method that takes a
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# hash and creates an attribute for each key and value. `Tab.new` probably
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# should not be called directly, instead use one of the class methods like
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# `Tab.for_install`.
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class Tab < OpenStruct
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def self.for_install f, args
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sha = `cd '#{HOMEBREW_REPOSITORY}' && git rev-parse --verify -q HEAD 2>/dev/null`.chuzzle
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Tab.new :used_options => args.used_options(f),
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:unused_options => args.unused_options(f),
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:tabfile => f.prefix + "INSTALL_RECEIPT.json",
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:built_as_bottle => !!args.build_bottle?,
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:tapped_from => f.tap,
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:time => Time.now.to_i, # to_s would be better but Ruby has no from_s function :P
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:HEAD => sha
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end
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def self.from_file path
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tab = Tab.new MultiJson.decode(open(path).read)
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tab.tabfile = path
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return tab
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end
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def self.for_keg keg
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path = keg+'INSTALL_RECEIPT.json'
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if path.exist?
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self.from_file path
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else
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begin
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self.dummy_tab Formula.factory(keg.parent.basename)
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rescue FormulaUnavailableError
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Tab.new :used_options => [],
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:unused_options => [],
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:built_as_bottle => false,
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:tapped_from => "",
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:time => nil,
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:HEAD => nil
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end
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end
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end
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def self.for_formula f
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f = Formula.factory f unless f.kind_of? Formula
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path = f.linked_keg/'INSTALL_RECEIPT.json'
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if path.exist?
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self.from_file path
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else
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# Really should bail out with an error if a formula was not installed
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# with a Tab. However, there will be lots of legacy installs that have no
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# receipt---so we fabricate one that claims the formula was installed with
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# no options.
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#
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# TODO:
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# This isn't the best behavior---perhaps a future version of Homebrew can
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# treat missing Tabs as errors.
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self.dummy_tab f
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end
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end
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def self.dummy_tab f
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Tab.new :used_options => [],
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:unused_options => f.build.as_flags,
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:built_as_bottle => false,
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:tapped_from => "",
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:time => nil,
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:HEAD => nil
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end
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def installed_with? opt
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used_options.include? opt
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end
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def options
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used_options + unused_options
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end
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def to_json
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MultiJson.encode({
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:used_options => used_options,
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:unused_options => unused_options,
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:built_as_bottle => built_as_bottle,
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:tapped_from => tapped_from,
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:time => time,
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:HEAD => send("HEAD")})
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end
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def write
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tabfile.write to_json
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end
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end
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